I have a 115V/230V transformer with specifications of: outputs 10V (parallel)/20V (series) and 1.2A (parallel)/600mA (series). Product
I'm no electrical engineer, but I need to get this set up to power my first hobbyist project. The reason for purchasing this particular transformer was due to height restrictions.
From what I understand, I can set this transformer up with 120V in parallel by connecting pins 1/3 to LOAD and 2/4 to NEUTRAL. If I then hook up pins 5/6 and 7/8 in parallel, I will get 10V/1.2A output.
When I hook up to the transformer output, I am not getting the expected A/C sine wave. Instead, it looks like the sine wave is cut off at the 5V mark. The measurements are 10.3Vp-p, 4.81 Vrms 60.02 Hz
Is my oscilloscope incorrect or is this the correct output for a 10V parallel transformer? I was expecting a 10 Vrms output (with peaks up to 14.14 V)
I also have a similar 9V AC transformer (single primary single secondary) that produces a similar output. Are my assumptions incorrect about these transformers?